Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 1 de 1
Filter
Add more filters

Database
Language
Journal subject
Affiliation country
Publication year range
1.
Molecules ; 26(7)2021 Apr 06.
Article in English | MEDLINE | ID: mdl-33917644

ABSTRACT

Oxidative stability of food is one of the most important parameters affecting integrity and consequently nutritional properties of dietary constituents. Antioxidants are widely used to avoid deterioration during transformation, packaging, and storage of food. In this paper, novel poly (vinyl alcohol) (PVA)-based films were prepared by solvent casting method adding an hydroxytyrosol-enriched extract (HTyrE) or an oleuropein-enriched extract (OleE) in different percentages (5, 10 and 20% w/w) and a combination of both at 5% w/w. Both extracts were obtained from olive oil wastes and by-products using a sustainable process based on membrane technologies. Qualitative and quantitative analysis of each sample carried out by high performance liquid chromatography (HPLC) and nuclear resonance magnetic spectroscopy (NMR) proved that the main components were hydroxytyrosol (HTyr) and oleuropein (Ole), respectively, two well-known antioxidant bioactive compounds found in Olea europaea L. All novel formulations were characterized investigating their morphological, optical and antioxidant properties. The promising performances suggest a potential use in active food packaging to preserve oxidative-sensitive food products. Moreover, this research represents a valuable example of reuse and valorization of agro-industrial wastes and by-products according to the circular economy model.


Subject(s)
Antioxidants/pharmacology , Iridoid Glucosides/pharmacology , Olive Oil/chemistry , Phenylethyl Alcohol/analogs & derivatives , Plant Extracts/pharmacology , Polyvinyl Alcohol/chemistry , Waste Products/analysis , Calorimetry, Differential Scanning , Free Radical Scavengers/chemistry , Iridoid Glucosides/chemistry , Phenols/analysis , Phenylethyl Alcohol/chemistry , Phenylethyl Alcohol/pharmacology , Proton Magnetic Resonance Spectroscopy , Thermogravimetry
SELECTION OF CITATIONS
SEARCH DETAIL